Sciences de la vie

Sciences de la vie

Sciences de la vie

C'est ici que vous pourrez développer vos connaissances, vos capacités de recherche et les applications pratiques de la microscopie dans divers domaines scientifiques. Apprenez à obtenir une visualisation précise, à interpréter les images et à faire progresser la recherche. Trouvez des informations pertinentes sur la microscopie avancée, les techniques d'imagerie, la préparation des échantillons et l'analyse des images. Les sujets abordés comprennent la biologie cellulaire, les neurosciences et la recherche sur le cancer, en mettant l'accent sur les applications et les innovations de pointe.
C. elegans nematode embedded in Epon epoxy resin, contrasted with osmium tetroxide. The resin block was pretrimmed by hand. Scale bar: 500 µm.

How to Save Time and Samples by Automated Ultramicrotomy

This article describes how 3D micro-CT data of a resin-embedded electron microscopy sample can be used to trim the specimen down to a defined target plane prior to sectioning. The interactive and…
Micrograph of dinoflagellate cells. Scale bar = 1 µm.

How Marine Microorganism Analysis can be Improved with High-pressure Freezing

In this application example we showcase the use of EM-Sample preparation with high pressure freezing, freeze substiturion and ultramicrotomy for marine biology focusing on ultrastructural analysis of…

Advancing Cellular Ultrastructure Research

Freeze-fracture and freeze-etching are useful tools for studying flexible membrane-associated structures such as tight junctions or the enteric glycocalyx. Freeze-fracture and etching are two…
Cryo FIB lamella - Overlay of SEM and confocal fluorescence image. Target structure in yeast cells (nuclear pore proteine Nup159-Atg8-split Venus, red) marked by an arrow. Scale bar: 5 µm. Alegretti et al., Nature 586, 796-800 (2020).

Targeting Active Recycling Nuclear Pore Complexes using Cryo Confocal Microscopy

In this article, how cryo light microscopy and, in particular cryo confocal microscopy, is used to improve the reliability of cryo EM workflows is described. The quality of the EM grids and samples is…
UC Enuity Ultramicrotome Person at Work

Essential Guide to Ultramicrotomy

When studying samples, to visualize their fine structure with nanometer scale resolution, most often electron microscopy is used. There are 2 types: scanning electron microscopy (SEM) which images the…
EM Sample Preparation Coating, Etching and Fracturing

Solutions de pulvérisation cathodique et de cryofracture

Du dépôt en vide secondaire à température ambiante à la pulvérisation cryogénique sous vide poussé, Leica Microsystems couvre la gamme complète des besoins en matière de pulvérisation.
Array tomography image of T-cells in mouse lymph nodes.

High Resolution Array Tomography with Automated Serial Sectioning

The optimization of high resolution, 3-dimensional (3D), sub-cellular structure analysis with array tomography using an automated serial sectioning solution, achieving a high section density on the…

Visualization of DNA Molecules

Precise low angle rotary shadowing with heavy metals (like platinum) can be used in transmission electron microscopy (TEM) to observe molecular details of objects previously absorbed on a thin, low…

Each Atom Counts: Protect Your Samples Prior to FIB Processing

Application Note for Leica EM ACE600 - Focused ion beam (FIB) technology has become an indispensable tool for site-specific TEM sample preparation. It allows to extract electron transparent specimens…
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